Ep. 4: The girls face a difficult challenge with their new friend joining them
Aired on May 1, 2016

A new companion joins the group, raising questions about the cute adventures they might experience together. The narrative focuses on the girls as they confront one of their most significant and difficult problems to date. This episode highlights the dynamics between the characters as they navigate this specific hurdle, emphasizing the challenges they must overcome together. The story centers on their collective effort to resolve the situation, showcasing their resilience and the impact of the new addition to their circle.
Episodes
- Ep. 1 · Akeno Embarks on Her Maiden Voyage to Graduate High School and Join the Blue Mermaids
- Ep. 2 · Mutiny on the Harekaze as the Crew Shares Their First Meal
- Ep. 3 · Moka's Ship in Trouble and Akeno's Rescue Mission
- Ep. 4 · The girls face a difficult challenge with their new friend joining them
- Ep. 5 · The Harekaze Crew Enjoys a Fireworks Display After Mutiny Ends
- Ep. 6 · Akeno attempts to rescue her friend during a chaotic German food tour
- Ep. 7 · Akeno's Family Expands Weekly With the Arrival of a New Member
- Ep. 8 · Akeno and crew devise new ideas to welcome the mysterious large ship